时间:2011-02-23 15:18来源:蓝天飞行翻译 作者:航空 点击:次
concentric /k.nsentr.k/ adjective having the same centre . concentric circles circles of different diameters but with the same centre point concept /k.nsept/ noun an idea or abstract principle . The concept of open skies is not one with which everybody agrees. . a complicated concept an idea or series of ideas or principles which are difficult to understand concern /k.nsn/ noun 1. serious interest . a matter for concern some-thing which must be taken very seri-ously 2. responsibility . Attention to the welfare of passengers is the concern of the cabin crew. . Safety is everybody’s concern. . this is no concern of ours this is nothing to do with us . verb 1. to cause somebody to feel worried . this report concerns me enormously I am not at all happy about this report 2. to be about or to be the subject of . If there is serious vibration, the crew should shut down the engine concerned. . this report concerns me this report is about me 3. to be of interest and relevance to . the regulations concern all employ-ees the regulations apply to all employ-ees ‘…the correct storage and handling of cargo and especially dangerous goods is an area which is of considerable concern to the Federation’ [INTER PILOT] concrete /k..krit/ noun a sub-stance made of cement, sand and water used in the construction of buildings, roads, etc. . Rock, sand and concrete reflect only 10–20% of radiation. condensation trail /k.nden |